Fluorocarbon coating for extruded aluminium and the aluminium sheet shall be a factory applied, oven baked finished based on Kynar 500 (Polyvinylidence Fluoride - PVF²) as supplied by the Fluoropolymer Paint Manufacturers and coated by licensed Applicator.
 

Application of the PVF² based on Kynar 500 cannot be field applied. The coating shall be applied onto aluminium substrate already suitably pre-treated and dried as specified above.

 

The Fluorocarbon coating (2 coat system) consist of an inhibitive primer with a dry film thickness averaging 5 to 7 microns and a top coat (colour coat) with a minimum dry film thickness of 25

microns.
 

The total minimum dry film thickness of the fluorocarbon coating shall be 30

 microns.

 The primer coat and top coat are sprayed applied and thermo cured at a bake cycle of 15 ¨C 20 minutes at 230¡ã C. The micron thickness can be measured in accordance with ASTM B244-29.

The Fluorocarbon coating system shall meet or exceed the performance requirements of the AAMA 605.2 ¡°Specification for High Performance Organic Coating on Architectural Extrusions and Panels¡±.